PREPARING STEROIDS IN MICROPARTICULATE FORM
The present invention relates to a method of preparing steroid compounds in a form having a particle size within a desired and specific range. The compounds prepared by the method of the invention are those having a basic ring structure of the general formula: wherein X represents the remainder of a...
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English |
| Published |
05.06.1985
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| Edition | 4 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | The present invention relates to a method of preparing steroid compounds in a form having a particle size within a desired and specific range.
The compounds prepared by the method of the invention are those having a basic ring structure of the general formula:
wherein X represents the remainder of a heterocyclic ring, in particular a 5-membered ring having at least 2 heteroatoms, and the method comprises dissolving the compound in an organic solvent, precipitating the compound by mixing a non-solvent for the compound with the said solution, and controlling the mixing conditions to produce a precipitate having the desired reduced particle size. |
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| AbstractList | The present invention relates to a method of preparing steroid compounds in a form having a particle size within a desired and specific range.
The compounds prepared by the method of the invention are those having a basic ring structure of the general formula:
wherein X represents the remainder of a heterocyclic ring, in particular a 5-membered ring having at least 2 heteroatoms, and the method comprises dissolving the compound in an organic solvent, precipitating the compound by mixing a non-solvent for the compound with the said solution, and controlling the mixing conditions to produce a precipitate having the desired reduced particle size. |
| Author | DAVID JOHNSTON DEREK CHARLES RILEY |
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| Notes | Application Number: GB19840027300 |
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| PublicationDate | 19850605 |
| PublicationDateYYYYMMDD | 1985-06-05 |
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| PublicationYear | 1985 |
| RelatedCompanies | STERWIN AG |
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| Snippet | The present invention relates to a method of preparing steroid compounds in a form having a particle size within a desired and specific range.
The compounds... |
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| SubjectTerms | CHEMISTRY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC CHEMISTRY PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES STEROIDS |
| Title | PREPARING STEROIDS IN MICROPARTICULATE FORM |
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